There is considerable confusion about the role of mammograms in breast cancer detection in premenopausal women. The US is the only country in the world making the recommendation that they be done on women under the age of 50. The people standing to profit from doing mammograms in this age group are the mammogram industry, Big Pharma in the sale of chemotherapy, and health care practitioners who treat people for cancer. Too many early cancers are found that do not progress and which do not kill are found and unnecessarily treated (DCIS). Recent data shows that it is necessary to do 1800 mammograms to save a single life. This would lead to far too many biopsies and treatment.